An elliptical galaxy could Group of answer choices become a starburst galaxy if it were to move through the hot intergalactic medium of a cluster. evolve into an irregular galaxy when it has used up all of its gas and dust. evolve from a single spiral galaxy when the spiral has used up all of its gas and dust. be formed from the collision and merger of spiral galaxies. evolve from an S0 galaxy if the S0 galaxy were to increase its rotation rate.

The radius of the circular piece that we need to remove is\((sqrt(3)/2)\)times the original radius Ro.

To halve the disk's moment of inertia, you need to remove a circular piece from the center with a specific radius. Let's denote the radius of the circular piece as R. The mass of the removed circular piece can be represented as M₂.
The moment of inertia for the remaining disk can be given by (1/2)MoR₀², as we want to halve the initial moment of inertia. Since the mass of the remaining disk will be M₁ - M₂, and assuming uniform distribution of mass, we can write:
\((1/2)MoR₀² = (1/2)(M₁ - M₂)R²\)
The area of the initial disk is A₀ = πR₀², and the area of the circular piece removed is A₂ = πR². Since mass is uniformly distributed, we can write the mass of the circular piece as:
M₂ = M₁ * (A₂ / A₀) = M₁ * (πR² / πR₀²) = M₁ * (R² / R₀²)\(M₂ = M₁ * (A₂ / A₀) = M₁ * (πR² / πR₀²) = M₁ * (R² / R₀²)\)
Now substitute M₂ in the equation for the moment of inertia:
(1/2)MoR₀² = (1/2)(M₁ - M₁ * (R² / R₀²))R²
Solve for R:
R₀² = R² + R⁴ / R₀²
R₀⁴ = R²(R₀² + R²)
R = √(R₀² / 2)
So the radius of the circular piece that you need to remove is R = √(R₀² / 2).

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A solution is defined as the homogeneous mixture which has the same composition throughout. A solution can exist in any phase.

A solution which is made up of two constituents or components is defined as the binary solution. The term solute is commonly used to refer to the constituent that dissolves and the term solvent is one in which the dissolution takes place.

There can be three physical states in which the solutions may exist, there can be three types of solutions: solid solutions, liquid solutions and gaseous solutions. There are solid solutions, liquid solutions and gaseous solutions.

Thus the solution can exist in any phase.

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When block 1 slides rightward toward the ideal spring attached to block 2, it gains kinetic energy. As it compresses the spring, the spring gains potential energy, converted back into kinetic energy as the spring decompresses and block 2 starts to slide to the right.

The acceleration of block 2 will be positive since it is moving in a positive direction. The center-of-mass acceleration of the two-block system will also be positive since both blocks are moving to the right. Pair A could represent the acceleration of block 2 and the center-of-mass acceleration of the two-block system. The graph shows a positive acceleration that increases with time, consistent with the scenario described. Pair B could not represent the acceleration since the chart shows negative acceleration, and Pair C could not represent the center-of-mass acceleration since the graph shows no change in acceleration.

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A 1.3 kg raven flying horizontally at 5.0 m/s collides with a 4.5 kg square wooden gate hanging vertically from a frictionless pivot at its centre and bounces back at 1.5 m/s. The angular speed of the gate just after the collision is to be determined.

First, we can find the initial momentum of the raven:

p_initial = m_raven * v_initial = 1.3 kg * 5.0 m/s = 6.5 kg*m/s

When the raven bounces back, its momentum changes by:

Δp = p_final - p_initial = m_raven * (v_final - v_initial)

We know that the final velocity is 1.5 m/s in the opposite direction, so:

Δp = 1.3 kg * (-1.5 m/s - 5.0 m/s) = -9.75 kg*m/s

By the law of conservation of momentum, the gate must also experience a change in momentum of -Δp. Since the gate is initially at rest, its final momentum is:

p_final = -Δp = 9.75 kg*m/s

This means that the gate acquires an angular momentum of:

L = r * p_final = (1/2) * 1.5 m * 9.75 kg*m/s = 7.31 kg*m^2/s

Finally, we can find the angular speed of the gate by dividing its angular momentum by its moment of inertia. Since the gate is a square, its moment of inertia about the pivot point is:

I = (1/6) * m_gate * a^2 = (1/6) * 4.5 kg * (1.5 m)^2 = 3.38 kg*m^2

Therefore, the angular speed of the gate is:

ω = L / I = 7.31 kg*m^2/s / 3.38 kg*m^2 = 2.16 rad/s

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The problem involves a plane wave in a vacuum, determining its expression, calculating the Poynting flux, and comparing it with that of an isotropic system.

(a) The equivalent expression for a 1GHz vertically polarized radio wave being transmitted due south in the given coordinate system is:

E(r, t) = E0 e^(-iωt) e^(ikz)

(b) The Poynting flux represents the rate of energy flow per unit area and is given by:

S = Re[(1/2μ0) E(r, t) × B(r, t)]

In this case, the wave is vertically polarized, so the magnetic field is given by:

B(r, t) = (c/k) e^(-iωt) e^(ikz)

Substituting the expressions for E(r, t) and B(r, t) into the Poynting flux formula, we get:

S = (1/2μ0c) |E0|^2 e^(2ikz)

(c) To calculate the average Poynting flux at a distance of 100 km, we need to determine the magnitude of the electric field amplitude |E0|.

Given that the wave electric field has an amplitude of 100 mV/m, we have |E0| = 100 mV/m. The average Poynting flux can be calculated using the formula:

Savg = (1/2μ0c) |E0|^2

(d) To compare the obtained Poynting flux with that expected from an isotropically transmitting system of the same total power, we need to consider the total power of the transmitter.

The total power can be obtained by multiplying the average Poynting flux by the cross-sectional area of the beam.

Comparing the Poynting flux with that expected from an isotropic system allows us to assess the concentration of power achieved by using a narrow circular cross-section beam.

The problem involves analyzing the properties and behavior of a plane wave and its Poynting flux. By using the given expressions and formulas, we can determine the equivalent wave expression, calculate the Poynting flux, and evaluate the average flux and total power at a specific distance.

Comparing the obtained Poynting flux with that expected from an isotropic system provides insights into the power concentration achieved by using a narrow beam.

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Answer:

0

Explanation:

The linear expansivity of a material is the fractional increase in length for a unit increase in temperature. To calculate linear expansivity for a length of 120m that assumed a new length of 120.0 when heated through a temperature of 100°C, you would use the following formula:

Linear Expansivity = (New Length - Original Length) / (100°C - 0°C)

Therefore, the linear expansivity of the material in this example would be:

Linear Expansivity = (120.0 - 120.0) / (100°C - 0°C)

Linear Expansivity = 0.

Answer:

The linear expansivity of length 120m when heated through a temperature of 100°C can be calculated by using the following equation: ΔL/L × (1 / T) = α, where ΔL is the change in length, L is the original length, T is the temperature and α is the linear expansivity. In this case, ΔL would be 0, as the original and new length are the same. Therefore, the linear expansivity of length 120m when heated through a temperature of 100°C is 0. Here is a Brainly link that can provide you with more information on linear expansivity: https://brainly.com/question/5861312.

It takes approximately 7.7 seconds for the ball to reach you from your friend who is 60 meters away from you. This is calculated by using the formula v=u+at, where v is the final velocity, u is the initial velocity and t is the time taken for the ball to reach you.

Here, the final velocity is 0 m/s, the initial velocity is 17 m/s and the acceleration due to the grass is -1.0 m/s2. By substituting these values in the formula, we get t=v-u/a. After solving the equation, we get t=17-(-1)/1=7.7 seconds. This is the time taken for the ball to reach you from your friend who is 60 meters away.

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Answer:

dog

Explanation:

Answer:

The period of a pendulum does not depend on the mass of the ball, but only on the length of the string.

Explanation:

Two pendula with different masses but the same length will have the same period. Two pendula with different lengths will different periods; the pendulum with the longer string will have the longer period.

Answer:

11.75 ohms

Explanation:

since its series connection

R equivalent = R1 + R2 = 7.25 + 4.5

Answer:

The velocity of the cross-wind was 375 km/hr South

Explanation:

The given speed of the airplane, v₀ = 500.0 km/hr W

The direction the airplane is headed = West

The direction of the wind encountered = Southbound wind

The final velocity of the airplane, R = 625 km/hr

The final direction of the airplane = South West SW

Let vₐ represent the velocity of the cross-wind

Therefore, we have the given velocities in vector form as follows;

R = -500.0·i - vₐ·j

Also, we have;

\(\left | R \right | = 625 = \sqrt{v_0^2 + v_a^2} = \sqrt{(-500)^2 + (-v_a)^2}\)

625² = (-500)² + (-vₐ)²

(-vₐ)² = 625² - (-500)² = 140625

-vₐ = 375

vₐ = -375 km/hr North = 375 km/hr South

The velocity of the cross-wind = vₐ = 375 km/hr South

Answer:

All I know is it is 8.2 cm.

Answer: That is to say, a satellite is an object upon which the only force is gravity. Once launched into orbit, the only force governing the motion of a satellite is the force of gravity. Newton was the first to theorize that a projectile launched with sufficient speed would actually orbit the earth.

Explanation: Because Earth-orbiting objects follow elliptical paths around Earth and not a straight line, forces cannot, by definition, be balanced. Force is directional. It is a push or a pull in a particular direction.

The mass of the silver is 289.275 x 10³ kg.

If you tried to smuggle silver ingots by completely filling a tote bag, whose dimensions are 50 cm x 29 cm x 19 cm, the density of silver is 10.5 x 10³ kg/m³

What would its mass be?

The formula for density is d = M/V

d = density (ρ)

M = mass (kg)

V = volume  (cm³)

First determine the volume

V =  Length x Width x Height

= 50 cm x 29 cm x 19 cm

= 27.550 cm³

The formula for density is d = M/V

So, the mass (M) is:

d x V

= 10.5 x 10³ kg/m³ x 27.550 cm³

= 289.275 x 10³ kg

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The equation of motion for the mass suspended from a spring in simple harmonic motion can be written as y(t) = A * sin(2πft + φ), where y(t) represents the displacement of the mass from its equilibrium position at time t, A is the amplitude of the oscillation, f is the frequency, and φ is the phase constant.

For a mass oscillating in simple harmonic motion, the equation of motion is described by a sinusoidal function. In this case, the mass completes 2 cycles every second, which means the frequency (f) of the oscillation is 2 Hz.

The distance between the highest point and the lowest point of the oscillation is the amplitude (A) of the oscillation, which is given as 12 cm. The amplitude represents half the range of the oscillation.

Using the values given, we can rewrite the equation of motion as

y(t) = 12 * sin(2π(2)t + φ), where t represents time and φ is the phase constant. The phase constant determines the starting point of the oscillation.

By observing the given information, we do not have specific information about the phase constant. If the phase constant is not provided, it is assumed to be zero. Therefore, the equation of motion simplifies to

y(t) = 12 * sin(4πt).

This equation represents the displacement of the mass as a function of time in simple harmonic motion.

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The mass flow rate of water is 0.08757 kg/s

mCp (T2 - T1) = Q =w

m x 1.015 (360-315) = 4000

m = 4000/ 1.015 x 10^3 x (360-315)

m = 0.08757 kg/s

The density of water at 68°F / 20°C has a flow rate in our example of about 998 kg/m3. However, as the density of water varies with temperature, salinity, and pressure, use our water density calculator if you want to be extremely accurate. 30.58 lbs/s of mass flow were shown by the gadget.

By dividing the volume flow rate by the fluid’s mass density, one can determine the mass flow rate. The cross-sectional vector area, A, is multiplied by the flow velocity of the mass elements, v, to determine the volume flow rate.

The mass of a substance that moves per unit of time is known as the mass flow rate in physics and engineering.

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Explanation:

force/area=pressure

force=10*mass

area=0.2*500

pressure=200/100=2

The strong nuclear force overcomes the repulsive electric force of protons in the atomic nucleus because it is a much stronger force. It is able to act over very short distances and is mediated by particles that are much heavier than electrons and photons.

The repulsive electric force of protons in the atomic nucleus does not cause the protons to fly apart because of the strong nuclear force. The strong nuclear force is an attractive force between nucleons that overcomes the repulsion between protons due to the electromagnetic force. This force is responsible for holding the nucleus of an atom together.

We will explain the physics behind why the strong nuclear force overcomes the repulsive electric force. The protons in the nucleus are positively charged and would normally repel each other due to the electrostatic force. The reason why they do not is because they are held together by a stronger force, the strong nuclear force. This force acts between nucleons, which are particles found in the nucleus of an atom. The strong nuclear force is a short-range force that acts over distances of less than a femtometer. It is much stronger than the electrostatic force, which is why it is able to hold the nucleus together. The reason for this is that the strong nuclear force is mediated by particles called mesons, which are much heavier than electrons and photons. The strong force is able to overcome the repulsion between protons because it is much stronger than the electromagnetic force, which is what causes the repulsion in the first place.

The strong nuclear force overcomes the repulsive electric force of protons in the atomic nucleus because it is a much stronger force. It is able to act over very short distances and is mediated by particles that are much heavier than electrons and photons. This force is responsible for holding the nucleus of an atom together and is what allows for the existence of matter as we know it.

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Answer:

0.2

Explanation:

3/15

Answer:

the answer is b. 37.3 min..

Answer:

A.agar gambar kita bagus

Explanation:

semoga membantu

SWOT Analysis Strengths- Paley’s Products has a low overhead cost with the company operating at a high level of efficiency, resulting in competitive pricing.- They have a team of experienced employees who have worked in the industry for several years.- They have a variety of products in the portfolio that can satisfy customers from different sectors.- They are reputable and have a loyal customer base.Weaknesses- They have been slow to adopt new technology, and this may be a disadvantage to the company.- Limited marketing and sales promotion are affecting their sales revenue.-

They depend on a few key customers for the bulk of their sales revenue, leaving them vulnerable to market changes.Opportunities- Expansion of the product line to include unique products.- The establishment of strategic partnerships with other businesses in the industry.- Exploration of new markets, such as international markets.- Improvement of marketing techniques to increase brand awareness.Threats- Changes in consumer preferences towards environmentally friendly products.- Increase in competition from other businesses in the industry.- Fluctuating market prices for raw materials that may lead to price increases.

Strategic Actions to be taken by Paley Products1. Development of an E-commerce platform to allow online transactions with customers. The E-commerce platform will enable Paley to reach a wider customer base, expand its reach, and increase sales revenue.2. Investment in the research and development of new environmentally friendly products. Paley will remain competitive and cater to the needs of consumers who prefer green products.3. Establishment of strategic partnerships with other businesses in the industry to leverage the strength of other companies in the industry and to develop new products or increase market share.4. Improvement of marketing techniques to increase brand awareness and improve visibility. A marketing strategy that incorporates social media and other digital channels can help promote the brand to potential customers.5. Expansion into international markets. This will enable Paley to diversify its customer base and generate more revenue. Paley can start by targeting nearby countries, then expand globally as they gain more experience and financial stability.

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Answer:

What do you need help with?

The force will be  0.171875 N . if separation is quadrupled.

force F1 = 2.33 N.

separation, r2 = 1.99 cm = 0.0199 m.

by the equation, F = k * (q1 * q2) / r^2,

where k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.

the force will be inversely proportional to 4^2 = 16 times less.

Therefore, the force experienced by each point charge when the separation is quadrupled will be

(2.75 n) / 16 = 0.171875 n.

Between two charges that are separated by a distance, there is an electrostatic force. The size of each charge and the separation between them determine the strength of the electrostatic force. Two charges that are either positive or negative when placed together repel one another.

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Answer:

A. Pu -239

Explanation:

An isotope is an element with the same atomic number but different mass number. most isotope are unstable, having short half life.

Curium-242 is an isotope produced when Plutonium 239 is bombarded by an alpha particle. This reaction between Plutonium 239 and alpha particle gives curium-242, neutron and a high amount of energy as the products.

Curium oxidizes easily, and it is a dangerous metal which can cause cancer initiation when absorbed by biological materials e.g bones or tissue.

Kinetic Energy. Energy is transferred from one object to another when a reaction takes place. Energy comes in many forms and can be transferred from one object to another as heat, light, or motion, to name a few. For the blue ball to move to the position of the green ball, energy must be given to the blue ball.

Answer:

4200 Newtons

Explanation:

Force = mass x acceleration

1200 x 3.5 = 4200